What could this be?

An

Hey! I’ve attached my cycle and a picture of what came out today when I wiped after peeing. Each time I’ve had sex he’s finished in me, I had REWCM on the 16th and cramping, so I assumed it was a later ovulation, we had sex and yesterday the REWCM was no longer there. I’m wondering what this could be? Could it be leftover sperm? Hahha 💀 sorry for the picture!